What are the consequences if I remove my converter,as it has the oxygen sensor on it?

 

You WANT that front O2 in place, and working. If you have emissions testing in your area, you won't pass without both in place. (Cat, and O2 sensor.) If you DON'T have emissions testing, you can replace it with a pipe, and weld in a bung for the O2, or, spend a bit more, and get the off road y-pipe from jegs, or summit. It already has the bungs in place.

 

Thanks for the reply, we don't have emissions testing where I live. How does it affect the gas mileage?

 

Without that O2 sensor you wont know the definition of mileage lol, ask me how I know! And then look what we drive! Ya that bad. No cat I'd assume it would increase because of less restriction.